Yu Zhang (张宇)

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Selected Projects (full list)

	Genesis Collaborator · Oct 2024 — May 2025 Project Page Github Collaborating with Xian Zhou and Prof. Chuang Gan on the Genesis project, an open-source physics platform for robotics and embodied AI research.
	Baraff-Witkin Cloth Model with IPC Collision Handling Personal Project · Oct, 2024 An implementation of the Baraff-Witkon cloth model. Unlike the original solver, our solver is based on an optimization formulation of the cloth model, and we solve this optimization problem using Newton's method. The IPC (Incremental Potential Contact) algorithm is used to handle the collision between the cloth and the rigid body.
	Meshy - A 3D AIGC Project Participant · Oct, 2023 Participating in the Meshy project as a graphics R&D engineer. Meshy is a 3D AIGC project that aims to generate 3D models from the text or image prompt. My responsibilities include optimizing the generateion quality and performance of the 3D generative model, and investigating various differentiable geometric representations, etc.
	Classical Partial Differential Equations: Numerical and Exact Solutions Personal Project · May, 2023 Github Article Several classical linear partial differential equations, including the transport equation, Laplace's equation, the heat equation, and the wave equation, are analyzed. Their exact solutions and numerical solutions (including Eulerian methods and Monte Carlo methods) in two-dimensional space are then compared.
	A Corrected Derivation of Invertible Neo-Hookean Model Personal Project · May, 2023 Github Article In this project, we implement several different invertible constitutive models. Additionally, we correct the derivation of the invertible neo-hookean model, which is presented in the SIGGRAPH course 'Dynamic Deformables: Implementation and Production Practicalities'.
	High-Performance PBD Physics Engine Company Project · Aug, 2021 This project aims to develop a high-performance PBD (position-based dynamics) physics engine, which is similar to Houdini Vellum. The engine supports a series of materials' simulation: rigid body, soft body, fluid, cloth, granular material, etc. We achieve a 60 FPS's 240k particles fluid simulation, and the simulation can be extended to a large-scale scene (there are 20 million particles in the picture on the right side). To obtain a high-quality fluid surface, we implement a surface reconstruction algorithm based on dual contouring. In this project, we also use a CCD (Continuous collision detection) algorithm to tackle the tricky collision problem.